Add 84/4 and 15/9
1st number: 21 0/4, 2nd number: 1 6/9
84/4 + 15/9 is 68/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
84/4 = 84 × 9/4 × 9 = 756/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
15/9 = 15 × 4/9 × 4 = 60/36 - Add the two like fractions:
756/36 + 60/36 = 756 + 60/36 = 816/36 - 816/36 simplified gives 68/3
- So, 84/4 + 15/9 = 68/3
In mixed form: 222/3
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